Method for preparing anthraquinone by anthracene oxidation method

An oxidation method and anthraquinone technology, applied in the preparation of oxidized quinones, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve strong oxidative and strong corrosive equipment damage, unfavorable industrialization, etc. problems, to achieve the effect of low cost, sufficient raw materials and high output

Active Publication Date: 2021-04-30
长沙赢睿知识产权运营有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0027] However, due to the strong oxidation and strong corrosion of nitric acid, it will cause serious damage to equipment, which is not conducive to its industrialization.

Method used

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  • Method for preparing anthraquinone by anthracene oxidation method
  • Method for preparing anthraquinone by anthracene oxidation method
  • Method for preparing anthraquinone by anthracene oxidation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0054] 1. γ-Al 2 o 3 Determination of adsorption capacity

[0055] The saturated adsorption capacity of the carrier needs to be determined before preparing the supported catalyst by the equal volume impregnation method. The method is as follows: Then weigh 5.00 grams of carrier γ-Al 2 o 3 , add distilled water dropwise to saturation, the amount of water used (3.5ml) is the saturated adsorption capacity Vp of the carrier (unit: mL / g).

[0056] 2. Preparation of catalysts with different components

[0057] FeN 3 o 9 9H 2 O is an active component, wherein the amount concentration ratio (Table 3) of the prepared substance is: n(Fe):n(Al)=0.02:1, 0.04:1, 0.06:1, 0.08:1, 0.1:15 single-supported catalyst. Number the five kinds of active components and carrier mixtures separately and seal them with plastic wrap, soak them at room temperature for 6-8 hours, put the soaked samples in a drying oven at a controlled temperature of 120°C and dry them for 6-7 hours. The process requ...

experiment example

[0064] Experiment with γ-Al 2 o 3 As the carrier, Fe and Zr oxides are the active components, and the Fe-γ-Al is prepared by the equal volume impregnation method 2 o 3 , Zr-γ-Al 2 o 3 Single supported catalyst and Fe-Zr / γ-Al 2 o 3 dual-supported catalyst. Investigate the influence of the structure of catalysts with different active components on the yield of anthraquinone under normal pressure and low temperature, analyze the product by ultra-high performance liquid chromatography, and evaluate the catalytic performance of the catalyst in the reaction of anthracene oxidation to anthraquinone. XRD characterization analyzed the crystal situation in the catalyst.

[0065] Experimental Reagents and Instruments

[0066] Table 1 Main experimental reagents

[0067]

[0068] Table 2 Main Experimental Instruments

[0069]

[0070] Table 3 Distribution ratio of Fe / Al, Zr / Al single-loaded active components

[0071]

[0072] Table 4 Distribution ratio of Fe-Zr / Al doubl...

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Abstract

The invention discloses a method for preparing anthraquinone by an anthracene oxidation method, wherein, the catalyst formula: γ-Al 2 o 3 As the carrier, Fe and Zr oxides are the active components, and the Fe-γ-Al is prepared by the equal volume impregnation method 2 o 3 , Zr‑γ‑Al 2 o 3 Single supported catalyst and Fe‑Zr / γ‑Al 2 o 3 dual-supported catalyst. The product was analyzed by ultra-high performance liquid chromatography, and the catalytic performance of the catalyst in the reaction of anthracene oxidation to anthraquinone was analyzed, and the catalyst was characterized by XRD and other means. The present invention attempts to develop a solid-phase catalyst to realize the catalytic oxidation of anthracene to prepare anthraquinone under normal pressure and low temperature (70° C.) conditions, and has the advantages of low energy consumption, low cost, and environmental friendliness.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, in particular to a method for preparing anthraquinone by an anthracene oxidation method. Background technique [0002] Anthraquinone (C 14 h 8 o 2 ) is an important fine chemical and chemical intermediate. It is usually used in industrial fields such as the production of anthraquinone dyes, high-concentration hydrogen peroxide, and enhanced kraft paper production processes, and is even widely used in pharmaceutical fields such as medicine and pesticides. Among them, anthraquinone is the parent substance of a large class of dyes and pigments, and occupies a very important position in the field of synthetic dyes. With the diversification and continuous growth of the fine industry, the demand for anthraquinone products in the domestic and international markets has been showing a steady increase. In view of the huge potential market demand of anthraquinone, optimizing and improving the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C46/04C07C50/18B01J23/745B01J21/06
CPCB01J21/066B01J23/745C07C46/04C07C50/18
Inventor 王伟建闭莉河石海信韦金广王芸
Owner 长沙赢睿知识产权运营有限公司
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